Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
UV-visible titrations of apoRc as a function of the copper(II) concentration at pH 2.5 (298 K): (a) titration of the folded form (visible region); (b) titration corresponding to the unfolded form (UV region). The insets display the corresponding molar fractions (obtained from the absorbance at 592 and 270 nm for the folded and unfolded forms, resp.) as a function of the total copper(II) concentration.
